74vcx16835 Fairchild Semiconductor, 74vcx16835 Datasheet

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74vcx16835

Manufacturer Part Number
74vcx16835
Description
Low Voltage 18-bit Universal Bus Driver With 3.6v Tolerant Inputs And Outputs
Manufacturer
Fairchild Semiconductor
Datasheet

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© 2001 Fairchild Semiconductor Corporation
74VCX16835GX
(Note 2)
74VCX16835MTD
(Note 3)
74VCX16835
Low Voltage 18-Bit Universal Bus Driver
with 3.6V Tolerant Inputs and Outputs
General Description
The VCX16835 low voltage 18-bit universal bus driver
combines D-type latches and D-type flip-flops to allow data
flow in transparent, latched and clocked modes.
Data flow is controlled by output-enable (OE), latch-enable
(LE), and clock (CLK) inputs. The device operates in
Transparent Mode when LE is held HIGH. The device
operates in clocked mode when LE is LOW and CLK is tog-
gled. Data transfers from the Inputs (I
Positive Edge Transition of the Clock. When OE is LOW,
the output data is enabled. When OE is HIGH the output
port is in a high impedance state.
The 74VCX16835 is designed for low voltage (1.65V to
3.6V) V
The 74VCX16835 is fabricated with an advanced CMOS
technology to achieve high speed operation while maintain-
ing low CMOS power dissipation.
Ordering Code:
Note 2: BGA package available in Tape and Reel only.
Note 3: Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Order Number
CC
applications with I/O capability up to 3.6V.
Package Number
(Preliminary)
BGA54A
MTD56
n
) to Ouputs (O
54-Ball Fine-Pitch Ball Grid Array (FBGA), JEDEC MO-205, 5.5mm Wide
[TAPE and REEL]
56-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide
DS500173
n
) on a
Features
Note 1: To ensure the high-impedance state during power up or power
down, OE should be tied to V
the minimum value of the resistor is determined by the current sourcing
capability of the driver.
Compatible with PC100 DIMM module specifications
1.65V–3.6V V
3.6V tolerant inputs and outputs
t
Power-down high impedance inputs and outputs
Supports live insertion/withdrawal (Note 1)
Static Drive (I
Latchup performance exceeds 300 mA
ESD performance:
Also packaged in plastic Fine-Pitch Ball Grid Array
(FBGA) (Preliminary)
PD
4.2ns max for 3.0V to 3.6V V
5.2ns max for 2.3V to 2.7V V
9.2ns max for 1.65V to 1.95V V
Human body model
Machine model 200V
24mA @ 3.0V
18mA @ 2.3V
6mA @ 1.65V
(CLK to O
Package Description
OH
n
CC
)
/I
supply operation
OL
)
CC
(OE to GND) through a pulldown resistor;
2000V
October 1998
Revised August 2001
CC
CC
CC
www.fairchildsemi.com

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74vcx16835 Summary of contents

Page 1

... Ouputs (O n Positive Edge Transition of the Clock. When OE is LOW, the output data is enabled. When OE is HIGH the output port high impedance state. The 74VCX16835 is designed for low voltage (1.65V to 3.6V) V applications with I/O capability up to 3.6V. CC The 74VCX16835 is fabricated with an advanced CMOS technology to achieve high speed operation while maintain- ing low CMOS power dissipation ...

Page 2

Connection Diagrams Pin Assignment for TSSOP Pin Assignment for FBGA (Top Thru View) www.fairchildsemi.com Pin Descriptions Pin Names Description OE Output Enable Input (Active LOW) LE Latch Enable Input CLK Clock Input Data Inputs ...

Page 3

Logic Diagram 3 www.fairchildsemi.com ...

Page 4

Absolute Maximum Ratings Supply Voltage ( Input Voltage ( Output Voltage ( Outputs 3-STATE Outputs Active (Note 7) 0 Input Diode Current ( Output ...

Page 5

DC Electrical Characteristics (2.3V Symbol Parameter V HIGH Level Input Voltage IH V LOW Level Input Voltage IL V HIGH Level Output Voltage OH V LOW Level Output Voltage OL I Input Leakage Current I I 3-STATE Output Leakage OZ ...

Page 6

AC Electrical Characteristics Symbol Parameter f Maximum Clock Frequency MAX t , Propagation Delay PHL t Bus to Bus PLH t , Propagation Delay PHL t Clock to Bus PLH t , Propagation Delay PHL Bus PLH ...

Page 7

Capacitance Symbol Parameter C Input Capacitance IN C Input/Output Capacitance I/O C Power Dissipation Capacitance Characteristics OUT OUT FIGURE 1. Characteristics for Output - Pull Up Driver FIGURE 2. Characteristics for Output - Pull Down Driver ...

Page 8

AC Loading and Waveforms TEST PLH PHL PZL PLZ PZH PHZ FIGURE 4. Waveform for Inverting and Non-inverting Functions t t 2.0ns, 10 FIGURE 6. 3-STATE Output ...

Page 9

Physical Dimensions inches (millimeters) unless otherwise noted 54-Ball Fine-Pitch Ball Grid Array (FBGA), JEDEC MO-205, 5.5mm Wide Package Number BGA54A Preliminary 9 www.fairchildsemi.com ...

Page 10

Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 56-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and Fairchild reserves ...

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